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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 54789 (06)
- University: Sharif University of Technology
- Department: Chemical and Petroleum Engineering
- Advisor(s): Shad, Saeed; Zivar, Davood
- Abstract:
- The purpose of drilling is to create a safe path to access underground hydrocarbon resources. Therefore, during drilling operations, barriers should be considered to ensure the safety of the well. When drilling a well, if for some reason, brine, gas or oil enter the well, the pressure of the mud column decreases, which will continue to collapse the stability and integrity of the well. In this case, the external fluid may reach the wellhead and blowout. For this reason, blowout preventers should be installed at the wellhead to secure the well with high confidence by closing the valves and preparing for the continuation of the drilling process. Well blowout may lead to loss of personnel lives, loss of millions of dollars, as well as environmental pollutions. Therefore, it is necessary to study and fully recognize the blowout preventers as a defensive barrier against blowouts. In this study, by modeling the blind shear rams and investigating the cutting process under different scenarios, we tried to investigate the efficiency of these types of rams as the last defense barrier. Comparison of modeling results with laboratory tests indicates the appropriate usability of the proposed model in simulating this process
- Keywords:
- Numerical Modeling ; ABAQUS Software ; Finite Element Method ; Kick Control ; Blind Shear Ram ; Blowout Preventer
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